Nobody works harder for their clients than Annie Cion Gruenberger. As one of Warburg’s top producing agents for more than 25 years, Annie has always been dedicated to helping her clients find the perfect property or successfully sell their home.

Many of Annie’s clients are repeat customers or referrals. This is because once you work with Annie, she becomes like family. She has helped many of her clients buy and sell multiple properties over the years, as well as help them eventually purchase apartments for adult children, as well as their family and friends. One example of Annie’s dedication to her clients is that she has handled seven separate transactions over a decade for one family alone.

Annie not only helps her clients with their real estate needs, but continues to be an invaluable resource, providing recommendations for many other types of needs, from contractors and painters, to physicians or tailors. Annie is always willing to share her vast knowledge in numerous areas curated during her 40 plus years living in Manhattan.

Although she resides on the Upper East Side, Annie helps clients find their dream home anywhere in city. She has sold and found properties for clients on the Upper West Side, Greenwich Village, NoMad and beyond. She leaves no stone unturned until she finds what her clients are looking for. When working with sellers, her knowledge, tenacity and market expertise yields swift sales at the best possible price. She is there every step of the way, from price negotiations, board packages, interview preparation, and more. Moreover, her strong relationships with other brokers, attorneys, managing agents and lenders allow her to streamline the purchase or sale process for clients.

Annie Gruenberger’s listing at 1170 Fifth Avenue is featured in the New York Times. https://www.nytimes.com/2018/11/02/realestate/former-home-to-michael-jackson-and-marc-chagall-sells-for-32-million.html

Annie Gruenberger is one of the exclusive agents representing a rare seven-story loft building on University Place, on the market for the first time in 80 years. https://www.dnainfo.com/new-york/20170207/greenwich-village/charles-cheriff-galleries-84-university

Annie Cion Gruenberger talks about helping her client, a native New Yorker who moved out of the city, find an apartment back in their hometown. http://www.nytimes.com/2016/06/26/realestate/once-and-always-a-new-yorker.html

530 East 76th Street $4,975,000 6 beds // 4.5 baths 3,305 sq.ft* The sprawling 3,300 square foot is perched high up on the 29th floor and is complete with two sizable outdoor balconies. Featuring an expansive, oversized living… More

With over 20 years experience in the real estate business, Annie has often listed an apartment multiple times over the years, selling it in turn to the previous several owners, as well as helping each of… More

Season 12 Top Chef contestant Adam Harvey is selling his Sutton Place apartment. The one bedroom at 333 East 55th Street has a brand new, state-of-the-art custom renovated kitchen designed by Harvey. According to listing agents… More

Warburg Realty, one of Manhattan’s leading real estate companies, recently announced its top 10 brokers for 2013. Longtime Warburg agent Wendy Greenbaum was the leading broker, followed by Richard Steinberg and Jay Glazer. The top ten… More

WARBURG REALTY® ANNOUNCES TOP 2013 BROKERS Wendy Greenbaum, Richard Steinberg and Jay Glazer Lead the Firm’s Most Successful Agents Warburg Realty®, one of Manhattan’s leading residential real estate companies, has announced its top 10 brokers for… More

Testimonials

10.7.15

Testimonial from Lisa Kapp

I am so thankful for Annie’s help in making a speedy sale, and ensuring the walk-through was smooth sailing! Although I was initially very sad to sell my apartment-I am absolutely thrilled to be on the Upper West Side. I adore the neighborhood, the building, plus have a larger apartment! It is true… “Everything works out for the best!”

3.6.15

Testimonial from Marcia B. Saft

Annie sold our Upper East Side apartment last fall, and recently sold us another apartment on the Upper West Side.

In both transactions, Annie was an outstanding professional: knowledgeable, responsive and hard-working. She listened to our needs and desires and responded appropriately and timely. We were so pleased with both the buying and selling sides. Annie helped us meet a few challenges in both transactions…again, with great professionalism.

We will happily recommend Warburg, in general, and Annie, specifically, to family and friends for future transactions in New York real estate.

2.14.15

Testimonial from Micheline and Mitchell

Annie took care of all details in our apartment search from the first minute until the very end. She set up many showings for us despite the low inventory of available apartments.

We highly recommend her if you are ready to buy in the city and we’ll also definitely call her again when we’re ready to upgrade.

10.23.14

Testimonial from Jay Kim

It is with pleasure and gratitude that we share comments on our experience with Annie Gruenberger in the listing and sale of our coop. While we have purchased and sold a number of apartments in Manhattan over the last 15 years, we have never before encountered such a level of experience, professionalism and attention to detail while selling our past coop apartments.

Each phase of the sales effort was superior, such as screening of bid proposals, effective showings, proactive facilitation during the sale negotiations, final negotiations and assembling of the buyers coop board package. All of these tasks, whether business-related or interpersonal, were accomplished with a high degree of attention to detail and integrity.

6.16.14

Testimonial from Milo Chan

Energetic, responsive, and super savvy about NYC real estate, Annie was our secret weapon when it came to selling our condo and buying a new home within a really tight timeframe. Each step of the way, she helped to inform our decisions, manage our expectations, and calm our nerves. Thanks to her expertise, we sold for a great price and found a new home that we love. She’ll be the first one we call if we move again.

5.20.14

Testimonial from Christina

It is a pleasure to recommend Annie as she consistently delivers satisfaction with every transaction. Fifteen years ago, I was a newly-married professional when I met Annie as her neighbor on the Upper East Side. Since then, Annie has advised my family through multiple sales and purchases as our space needs expanded. As her client, I truly appreciate Annie’s professionalism and integrity, and respect her deep knowledge of the market and excellence in negotiations. She has the experience, judgment and finesse to successfully navigate complications and resolve differences with diplomacy and fairness.

Happy Fall! AAdvanced Notice from Annie and Arlene focuses on new developments in neighborhoods across the city. In this issue we focus on Tribeca, which is booming with new buildings. However, we would be remiss if we… More

Greetings! We are delighted to share the most recent edition of AAdvanced Notice, focusing on the newest and most notable residential and community offerings in the Financial District. The Financial District used to be thought of as… More

Greetings! With a new year comes new real estate developments across our ever-evolving city. This edition of AAdvanced Notice focuses on the continuously-changing landscape of Chelsea and the High Line. The High Line has become one of the… More